Battery Case and Battery
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United States of America Patent
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app pub date -
Sep 29, 2006
filing date -
Sep 29, 2006
priority date (Note) -
Abandoned
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Abstract
A battery case is provided, comprising a cylindrical body (1), a top cover plate (3) and a bottom cover plate (4). The cylindrical body (1) comprises a top which is open and covered with the top cover plate (3) fixed thereto, and the cylindrical body (1) further comprises a bottom configured to be a supporting surface (8) having an opening (2). The opening (2) of the supporting surface (8) is configured to be covered with the bottom cover plate (4). Further, the opening (2) is configured to be a stepped opening or a conical opening. Still further, a first groove (12) is arranged on an exterior surface of the bottom surrounding the opening (2), and a second groove (13) is arranged on an exterior surface of the bottom cover plate next to the opening (2) of the bottom. A battery made of the battery case is also provided.
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